The opening question sets a frame. Every answer that follows is given inside it, and the respondent cannot see the frame because they are standing in it.
Adept
The hidden part#0134
The first question is not a question. It is the frame in which the second question will be understood.
The middle is not chosen for its properties. It is chosen because it is the only position that cannot be accused of either extreme, which makes it defensible.
Master
The hidden part#0120
Nobody sells you the middle. They sell you the extremes, and the middle is what you conclude from them.